We'll start with the XS. Apple's brought back the 'S' model, which means this model looks largely the same as the X from last year, but the guts of the phone have been beefed up in all the ways you'd expect.

There's a slightly better screen, some improved water resistance and Apple's new A12 Bionic processor to make everything run that little bit faster.

On the surface the camera specs appear the same as last year's model, but Apple reckons its new Smart HDR tech, ability to control the depth of field on portraits and faster sensors will have you shooting better photos than ever before.

And despite having a slightly bigger screen than last year's iPhone 8 Plus, it's packed into a much smaller overall package.

It's the biggest iPhone ever, with a whopping 6.5-inch display (up from the 5.8-inch screen on the XS model).

The XR is Apple's new budget option.

It's got an LCD screen rather than the more advanced OLED ones the other models have, it's in an aluminium frame rather than a stainless steel one and it has water resistance tech that's not quite as good as its more-expensive siblings.

Interestingly it's got a bigger screen than the XS, coming in a 6.1 inches.

I'll need to start saving if I want one won't I?

Absolutely.

Not only is the iPhone XS Max the biggest iPhone ever, it's also the most expensive.

If you're after the 512GB version, you'll be forking out $2,369 (the smallest 64GB XS Max model comes in at $1,799).

The XS model will set you back $1,629 for the 64GB model and $2,199 for the 512GB.

And the XR model is the cheapest at $1,229 for the 64GB and $1,479 for the 512GB model.

And if you thought now would be a good time to pick up last year's iPhone X, you're out of luck.